Cavia (Cavitations Technology)
Every day, the waste water treatment process is enhanced by new techniques that increase profit and help installations meet modern environmental standards.
Thanks to the recent merger between Dewaco’s and Cavia’s business operations, one such technique, cavitations technology, is now an integral component of the sophisticated Dewaco product portfolio.
CAVIA cavitations technology plays a vital role in the sludge handling process. It paves the way for greater sludge economy, unlocks the potential for enhanced profit and ensures compliance with modern environmental regulations.
Economical, ecological sludge handling
CAVIA facilitates the extracttion of valuable materials and energy from sludge. During the sludge handling process, CAVIA generates an improved biogas yield of up to 40%. This increased source of free, renewable energy that can be used on site or resold to the grid, has a major impact on net profit and an equally significant effect on emissions, reducing them drastically.
Another noticeable benefit of cavitations technology is the effect it has on dewatering efficiency. CAVIA improves dewatering to the extent that less energy and chemicals are consumed during the sludge handling process. With increased biogasification, the sludge quantity is reduced by approximately 25%. With less sludge, customers can enjoy significant savings in disposal costs and also reduce their carbon footprint.
Dewaco’s team of highly qualified engineers, experienced specialists and skilled technicians tailor cavitations technology systems to individual customer needs. For a low initial outlay, CAVIA increases output and reduces total operational costs leading to a far better return on investment.
Technology today for a greener, more profitable tomorrow
The simple addition of the CAVIA cavitations chamber into existing sludge handling processes has a dynamic impact on treatment efficiency and therefore profitability. In the cavitations chamber, sludge flows through a tubular vibrating reactor and is subjected to high-frequency acoustic signals. This cavitations treatment leads to a breakdown of the cohesive forces of liquid molecules and the generation of cavitations bubbles. Light organic substances are released into the sludge water which exposes them to further anaerobic digestion.
The subsequent anaerobic digestion of the treated sludge improves biogas production and reduces sludge quantity – two very important economic considerations in waste water treatment plants.
Fast implementation, rapid results
CAVIA is simple to install and causes minimal disruption to the process. It is quickly up and running and the results, in terms of increased levels of biogas and reduced quantities of sludge for disposal, can be seen within a matter of weeks. Cavitation technology is delivered in modules which are multiplied to match total sludge handling volumes.
Reaching the optimum output
When the cavitations system has been installed and connected, Dewaco experts provide comprehensive training for customers to ensure the continued smooth operation of the unit. They also perform test runs and make adjustments to ensure the optimum output is obtained.
When the optimum output has been achieved, the entire system functions automatically and continuous supervision by an operator is unnecessary.
On-line monitoring for greater reliability
The CAVIA process database contains all operational parameters and is set to react immediately should any defect occur.
The Dewaco maintenance and service package includes online monitoring. In emergency situations, alarms can be transferred to a designated Dewaco technician via a GSM or DSL modem.The technician can analyse the situation and take corrective action remotely, give instructions to the customer to rectify the problem or arrange for an on-site visit. This rapid response ensures greater process reliability and a minimum disruption to the customer’s business.
Additional software continuously monitors the overall performance of the system. Operators are informed directly should the need for maintenance operations arise.
